Bogie for railway-vehicles.



PATENTED MAY 2, 1905.

I. A. TIMMIS.

BOGIE FOR RAILWAY VEHICLES.

APPLICATION FILED AUG-15, 1904.

WITNESSES A Horny 6' UNITED STATES Patented. May 2, 1905.

PATENT OFFICE.

BOGIE FOR RAILWAY-VEHICLES.

SPECIFICATION forming part of Letters Patent N 0. 788,684, dated. May 2, 1905. Application filed August 15, 1904. Serial No. 220,791.

To (all whom it may concern:

Be it known that I, ILLIUs AUGUSTUS TIM- MIs, a subject of the King of Great Britain, residing at London, in the county of M iddlesex, England, have invented new anduseful ImprovementsinBogiesforRailway-Vehicles, of which the following is a specification.

My invention has relation to bogies for railway-vehicles, and has for its object the provision of means for preventing or lessening the side swing of long vehicles when traveling around curves and for causing bogie-supported cars to run more smoothly.

It is well known that each end of a bogieear is supported on a bogie or truck which runs on two or three pairs of wheels, and it is also known that in the center of a fourwheel bogie there is a movable bolster, which carries and swivels under a cross-beam or bolster fixed across and to the carbody. The bogie-bolster is generally supported on two sets of springs, one these latter rest on a swinging beam which is hung from the sides of the bogie-frame by a pair of links at either end of the swinging beam. The springs so used are either laminated or coiled; but in either case it is not practicable to put them farther from the center of the bogie than the inside width. of the bogie allows. According to my improvements, however, it is practicable and convenient to arrange the springs on the outside of the bogie and at any desired distance from the center and to so dispose them that they will take up the side-swinging motion of the car-body and cause the car to run more easily.

In the accompanying drawings, Figurel is a side elevation of a part of a car-bogie equipped with my improvements. Fig. 2 is a cross-section of the same. Figs. 3, 4, and 5 arerespectively an end elevation, a crosssection, and a plan view of a modification of my invention.

In carrying my invention into eflect I use the following means: Referring more particularly to Figs. 1 and 2, at each end of the bogie-bolster B, A A, extending downward and outward as far as maybe required to clear the bogieframe F.

set at either end, and

1 [it one, two, or more arms Underneath and or attached to the end of each arm A is a cylindrical or other conveniently-shaped plate or cap G. Then from the outside of the bogie at each side I suspend two links or rods L L at any suitable angle, which rods or links being pivotally supported in brackets a a are free to swing. One rod passes through each of the caps C and extending downward passes through another plate or cap, P, and has on its end a nut g, fastened with a lock-nut 01" pin, or both, by which it supports the cap or plate P. Between the two caps G and P on each rod or link L, I arrange a suitable spring, which may be of coiled or laminated steel, rubber, or other material. It is thus seen that the car-bolster rests on the bogie-bolster B, and that the latter, by means of its arms A A and the caps C and P, rests on the springs S S, and that the whole are supported by the bot tom caps P and the rods swinging from the bogie-frame. It is evident that any downward or outward thrust from the car-body is taken up at a far greater distance from the center of the vehicle than has been the case heretofore, and it is also evident that as the car-body and its bolster B, and the bogiebolster B with it, swings to one side the bearing-springs S S ends farther from the center of the bogie, and thus check the side swing.

1n the modification illustrated in Figs. 3, i, and 5 I have fitted one long cap 0' at the top of the bearing-springs instead of the separate cap for each spring, as above described, and another similar cap or plate, P, at the bottom. This construction enables me to [it more than two bearing-springs to each side of the bogie and also to use springs of different power and differentially loaded. It also enables me to use compound or double or triple coil-springs, the coils being of different power and differentially loaded on each arm or rod L. The rod L (or rods) may be a link and outside the spring or springs and the caps also. This is advisable in using laminated springs.

Compound or diiferentially-loaded springs may be fitted on a single rod or arm L or on each of two or more rods.

are carried at their lower- 5 ticularly to four-Wheel bogies;

When desirable, side check-springs may be fitted t0 the bogie-bolster, as shown in Fig. 4.

The above description applies more parbut the devices may be easily applied with but slight modification to six-Wheel bogies having two bolsters instead of one.

Having described my invention, what I 10 claim, and desire to secure by Letters Patent,

In a bogie for railway-vehicles, a bolster having one or more arms at either end extending downward, in combination with swinging rods, attached to the bogie-frame, passing through the ends of said arms and supporting bearing-springs substantially as set forth.

ILLIUS AUGUSTUS TIMMIS.

Witnesses:

E. W. TIMMIs, I. H. W. ROUND. 

